<template>
<div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${categoryData.parentId}` }">{{ categoryData.parentName }}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{ categoryData.name }}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
      <el-tabs v-model="reqData.sortField" @tab-change="tabchange">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div class="body" v-infinite-scroll="load" v-infinite-scroll-disable="disable">
         <!-- 商品列表-->
          <goods-item v-for="goods in goodsList" :goods="goods" :key="goods.id"></goods-item>
      </div>
    </div>
  </div>
</template>

<script setup>
import goodsItem from '../Home/components/goodsItem.vue';
import { getCategoryFilterAPI,getSubCategoryAPI } from '@/apis/category';
import { onMounted, ref } from 'vue';
import { useRoute } from 'vue-router';
//获取面包屑导航数据
const route = useRoute()
const categoryData = ref({})
const  getCategoryData = async ()=>{
  const res = await  getCategoryFilterAPI(route.params.id)
  categoryData.value = res.result
}
onMounted(()=>getCategoryData())

//二级分类页商品列表的数据渲染
const goodsList = ref([])
const reqData = ref({
    categoryId: route.params.id,
    page:1,
    pageSize : 20,
    sortField:'publishTime'//publishTime按照时间进行排序  筛选条件参数：sortField：控制当前字段的数据排序
})
const getGoodsList = async ()=>{
  const res = await getSubCategoryAPI(reqData.value)
  console.log(res);
  goodsList.value = res.result.items
  
}
onMounted(()=>getGoodsList())

//tab切换恢复
const tabchange = ()=>{
  console.log('tab切换了',reqData.value.sortField);
  reqData.value.page=1
  getGoodsList()
}
//无限加载
const disable = ref(false)
const load = async ()=>{
  console.log('加载了更多');
  //数据增加
  reqData.value.page++
  const res = await getSubCategoryAPI(reqData.value)
  //老旧数据拼接
  goodsList.value = [...goodsList.value,...res.result.items]
  //设置条件 结束接听
  if(res.result.items<=30){
    disable.value = true
  }
}
</script>

<style scoped lang="scss">
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>